Heating-stove.



i UNITED STATES PATENT OFFICE.

JAMES I-I. WATERS, OF 'IACOMA, WASHINGTON.

-HATINe-srove.

lSPECIFICATION forming part yof Letters Patent No. 728,527, dated May 19, 1903. Application filed December 28, 1899.l Serial No. 74l,8`19. (No model.)

To all whom t may concern.-

Be it known that I, JAMES H. WATERS, a citizen of the United States, residing at Tacoma, in the county of Pierce and State of Washington, have 'invented a new and useful Improvement in Heating-Stoves, of which the following is a specification.

My invention pertains to stoves' of the airtight pattern, in which my improvement consists of a fire-box or combustion-chamber located within the stove.

The object of my invention is to obtain a larger heating-surface for the amount of fuel consumed and to so regulate and adjust the fire-draft as to utilize a maximum amount of heat from a minimum amount of fuel. I attain these results by means of the device illustrated in the accompanying drawings, in which- Figure 1 is a vertical cross-section of a stove constructed with myimprovement. Fig. 2 is a vertical section lengthwise of the same. Fig. 3 is a'horzontal'sect-ion at 3 3, and Fig. 4 is a perspective view of the stove with my improvement indicated as constructed therein.v

Similar letters refer to similar parts in the several v iews.

My invention comprises afirebox A, located within a stove B.v The stove is prefably oblong or elliptical-in shape, and the lireboxis designed to extend from side to side and also to the top of the stove. 'The fire-box is t securely anchored tothe body of the stove and is so located lthat a space C is provided between thebottorn of the ash-pit and the bottom of the stove. In connection with the fire-box is a .hot-air draftchamber D, with ports E E E near the bottom opening into the fire-box and with intake air-openingsF F, with dampers at the top. Near the top of the fire-box and passing through D is a direct-draft pipe G, provided witha damper H. In the opposite side of the fire-box is opening L to provide an indirect draft when H is closed. A The fire-box is provided witha suitable grate M at a proper position to provide an ash box or pit N below. The damper H is designed to be opened only when starting a fire or when a strong draft is temporarily required. As soon as the fire is well started H is to be closed, when the heat of combustion is drawn through L and downward under the lire-box and thence up and out the smoke-pipe O, as indicated by the arrows. By means of this circulation of the dames and of heat is utilized before passing out of the smoke-pipe. The supply*air'for-combustion is regulated by means of the dampers F F. The air in passing through the chamber D becomes thoroughly heated before entering the fire-box, and thus produces a more thorcold air were used.

'It will be observed that the'iire-box extends to the top of the stove and is closed at the top by the removable covers I, which permit access to the fire-box from the top for top above the lire-box to be heated. It will be further observed that the indirect-draft opening L is in the upper part of the wall of the fire-box, which insures an upward draft through the lire-box and at the same time causes the escaping products of combustion to leave the] lire-box at a point where they will heat the top ofA the stove to one side of the fire-box vandalso the side of the stove the arrowsin Fig..2 of the drawings.

Having thus described my invention, what I claim as new and u'sefukand desire to secure by LettersPatent, is-

air-tight drum, and an internal fire-box 1ocated within the druml andhaving its upper part in close contactwith the top of the drum, with the body portion depending within the drum to divide the interior of the drum into spaces, one on the side next to the smokeexit pipe, another on the side farthest from the smoke-exit-pipe side, and another beneath the fire-box and in communication with the side spaces, a valve-controlled directdraft pipe between thefflre-box and smokeexit pipe leading from the external drum, an air-supply or draft iiue leading from outside of the air-tight drum and extending along the fire-box from its upper to its lower portion and delivering into the lower part of the firebox whereby the air' is heated before it enters the bottom of the fire-box, and an indithe-fire-box and the upper part ofthe side ough combustion and a higher heat than if` A heating-stove consisting of an. external rect-draft opening between the upper part of smoke about the stoveva maximum amount supply of fuel and which also enables the from the top to the' bottom, asfillustrated by space farthest removed from the smoke-exit pipe, whereby the air introduced at the bottom of the fire-box is caused to pass upwardly toward the top of the box and finds its escape through the indirect-draft opening at the upper end of the {ire-box adjacent to the top of the outside drum, the several parts being relatively arranged as specified, whereby air is excluded from between the external air-drum and internal central lirebox except such air as is admitted into the firebox at the bottom through a preliminary heating-line and then directed from the npper part of the rebox next to the top of the drum into the side space farthest removed from the smoke-exit pipe and thence down through said space and into the space beneath the tire-box and thence into and up through the space on the side next To the smoke-exit pipe and thence out through said pipe at the top of said space, substantially as described.

In testimony whereof I affix my signature in the presence of two Witnesses.

JAMES H. WATERS. Witnesses:

G. W. BULLARD, EMILE S. LEMME. 

